The checkout page is beyond the control of the theme, save for a number of cosmetic settings that can be controlled through the theme editor.
If changes to checkout page are needed but not included in these settings, reach out to Shopify Support to learn more about this feature.
The banner is the top section of the checkout screen where your store name appears. Customize it by uploading a custom Background image.
To add your store’s logo to the Checkout page, upload a Custom image. Then configure the Position and Logo size.
Main content area
The Main content area is the left side of the checkout screen where a user inputs their email and shipping address. To use a custom background here, upload an image. Alternatively, use the color picker to select a background color. There are two options for the color of the Form fields: white or transparent.
The Order summary is the right side of the Checkout page where customers can review the details of their order. Upload an image or use the color picker to select a background color.
You can customize both the Headings and Body font for the checkout by selecting fonts from the appropriate dropdown menu.
You can customize the Colors that appear on the Checkout page under Colors.